baber/WOPTO huggingface dataset:
Patent GB-407076-A (GB)
Title: Improvements in mechanically operated amusement apparatus
IPC: G07F17/34
Filed: 1932-09-09
Abstract: 407,076. Coin-freed amusement apparatus. SPARKS, W. E., 175, Peckham Park Road, London. Sept. 9, 1932, No. 25182. [Class 27.] Mechanism for selecting and ejecting one or more coins from a stack, for use in coin-freed amusement apparatus, and comprising a rotary member 2 carrying a plurality of radial arms or stops 3 which are angularly separated and disposed at various radii, and a reciprocal sector 4 which coacts with the stops to determine the position of the ejector, is provided with a power driven shaft for actuating and resetting various elements of the mechanism. As applied to game apparatus in which the player tries to stop a spinning pointer or the like at one of a number of indicated winning positions on a dial, a coin-freed arm 12 is actuated to release a rack 8 which, through a pinion 8<a> and a freewheel clutch, spins a shaft 1 carrying the pointer and the member 2. In order to stop the pointer the player presses a push 24, which, when the rack 8 is in its lowest position, can engage a pivoted arm 26 and free the upper end 29 thereof from an arm 6 carrying a detent 5, thus causing the latter to fall into engagement with teeth 7 on the wheel 2 and bring the latter to rest. Motion of the arm 26 withdraws a support 30 from a lever 33 and permits a lever carrying the support to start an electric motor by withdrawing the brake shoe 30 and closing the contacts 31 : this motor actuates a shaft 18 carrying cams 19, 23, 32. The cam 19 first engages a lever 20 connected to the carriage 13 of the selector 4 by a spring 21, and raises the selector into engagement with one of the stops 3 if one is in position. The selector is connected through linkage 14, 15 to an ejector 16, which is positioned in alignment with a coin stack from the bottom of which one or more coins are ejected, corresponding with the various prize values assigned to the stopping positions, in accordance with the position of the stop 3 which the selector has engaged ; if the selector has encountered no stop, the ejector is positioned clear of the coin stack. The cam 23 next engages the ejector carriage 17 and causes the ejection of one or more coins from the stack. Finally the cam 32 actuates a lever 33 and causes the end 35 thereof to engage a projection 36 on the rack 8 and reset the latter which through a projection 36<a> raised the lever 6 carrying the detent 5 ; this lever 33 in returning to its initial position also acts in any desired way to break the contacts 31 and re-apply the brake 30.
Patent GB-187583-A (GB)
Title: Improvements in or relating to positive electrodes for electric accumulators
IPC: H01M4/48
Filed: 1922-09-19
Abstract: 187,583. Gross, C. Oct. 17, 1921, [Convention date.]. Void [Published under Sect. 91 of the Act]. Electrodes.-A positive electrode for an accumulator consists of an oxide of a metal capable of forming a number of oxides such as manganese, together with an oxygen-transmitting catalyst such as a metal of the platinum group, lead superoxide &c. The mixture may be pressed into the form of a plate or it may be attached to a grid. The, mass may be rendered porous by adding a chlorine or bromine compound of the the metal whose oxide is used, the halogen being subsequently removed by chemical or electrolytic means. In an example manganese dioxide is added to a saturated solution of manganese chloride containing 1 per cent of platinum chloride to form a dough which is pressed into the form of a plate or introduced into a metal grid. This is then dried and made to anode in an electrolytic bath of dilute sulphuric acid until all the chlorine is expelled,
Patent GB-364534-A (GB)
Title: Improvements in aircraft
IPC: B64C3/18
Filed: 1930-08-25
Abstract: 364,534. Aircraft wing structures. MESSERSCHMITT, W., 118A, Haunstetterstrasse, Augsburg, Germany. Aug. 25, 1930, No. 25290. Convention date, Aug. 23, 1929. [Class 4.] A single spar wing comprises pairs of oppositely inclined ribs or pairs of oppositely inclined plane skeleton structures formed of rods or struts, mounted on and converging from the main spar so as to form substantially pyramidal structures extending in either or both directions from the main spar, the ribs or skeleton structures of each pair contacting at the leading edge or trailing edge of the wing and the points of contact being connected together to form a structure resistant to torsion. Ribs b, Fig. 1, connected to the single spar a are inclined to the direction of flight in pairs and are joined at the leading and trailing edges thus forming with the outer covering pyramidal structures, the apices of which are connected to longitudinal braces c. In a modification, Fig. 2, the pyramidal structures are formed from struts d or wires if the stress is purely tensional, and the ribs may be arranged as shown or/and placed between the pyramids. One brace c may be of deep section shaped to the contour of the leading edge thereby partially replacing the outer covering. In a further modification the apices of the pyramids may be formed by the outer covering which overlaps at these connections and is stiffened by a plate or girder.
Patent GB-1293112-A (GB)
Title: Motion picture film cartridge
Inventor: SUTLIFF ROBERT CLYDE
IPC: G03B17/26
Filed: 1971-04-19
Abstract: 1293112 Cine film cartridge EASTMAN KODAK CO 19 April 1971 [31 March 1970]  25298/71 Heading G2E In a cine film cartridge 10 of the type divided by a partition 12 into a take-up chamber (14), Figs. 3, 4 (not shown), and a supply chamber 13, the film is wound around a hub 15 in chamber 13 and is transferred to the take-up chamber (14) via aperture 18 where it is wound on to a reel 17 which has teeth 20 (only one visible). To prevent the film in the take-up chamber unwinding during forward film feed a flexible finger 19 rests on the reel 17 and co-operates with the teeth 20 as shown. To disengage this locking mechanism, for example when the film is to be re-wound, a pin 26 perforates a weakened portion of the cartridges wall 11 to prevent the finger 19 abutting any of the teeth 20. This method of disengagement is identical with that described and claimed in Specification 1280256.
Patent GB-431980-A (GB)
Title: Improvements relating to domestic cooking and like utensils
Filed: 1934-02-12
Abstract: 431,980. Heat-distributing plates for cooking-stoves. BRANDT, B., 97, Mortlake Road, Kew Gardens, Richmond, Surrey, and VOLCANO BOILER, Ltd., Parliament Mansions, Orchard Street, London. Feb. 12, 1934, No. 25327. Divided out of 416,569. [Class 126] A device for improving heat conduction between a hot-plate surface and a domestic cooking or like utensil comprises a flexible or resilient thin metal disc or plate, with its area subdivided into independently warpable regions g<2>, e.g. by one or more narrow cuts or slots g', arranged as in Fig. 1 to radiate to the periphery from close to a small central perforation g<1>, or, as in Fig. 2, following a spiral from near the centre to the periphery. The sections of the disc may be initially warped or offset, or the coils of the spiralized form may be initially sprung open. Specification 416,569 is referred to.
Patent GB-455349-A (GB)
Title: Improvements in means for feeding several electric amplifiers from the same supply
IPC: H03F1/54
Filed: 1935-04-09
Abstract: 455,349. Rectifying alternating currents. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ESPLEY, D. C., and WALTER, D. O., c/o General Electric Co., Ltd., Wembley, Middlesex. April 9, 1935, No. 25343/36. Divided out of 454,633. [Class 38 (ii)] [See also Group XL] In amplifying and like systems designed for a wide frequency range such as television amplifiers, interference between amplifiers, such as low-frequency feedback, is reduced by arranging the H.T. supply to different amplifiers or groups of amplifiers in the same chain over different channels, wherein at least two windings in different channels are separate but are wound on a common core. The windings may be smoothing chokes on a common core ; or the transformer secondary may comprise separate windings each feeding a separate rectifier, such windings being constituted by using the strands of stranded wire with merely surface layer insulation, one strand to each rectifier. British Specifications 236,702, 269,972, 311,893, 318,159, [all in Class 38 (ii)], and 369,038, [Group XL], and U.S.A. Specifications 1,853,217 and 1,861,201 are referred to. Reference has been directed by the Comptroller to British Specifications 281,776, [Class 38 (ii)], and 388,501, and U.S.A Specification 1,948,307.
Patent GB-591280-A (GB)
Title: Improvements in buffers for railway vehicles and the like
IPC: B61G11/04
Filed: 1944-12-19
Abstract: 591,280. Buffers for rail &c. vehicles. MATTHEWS, C. A. Dec. 19, 1944, No. 25448. [Class 103 (v)] Centralising bushes e, f are inserted between the. casing a and the hollow plunger b<1> of a buffer to take up wear and their removal is facilitated by the provision of slots at'holes e<4>, f<2>. The rear bush e has an annular flange e<2> abutting against the filling piece d which has a similar flange d<2> abutting against the removable back-plate a<5> and has holes or slots d' to facilitate removal. The bush e and filling piece d have the same internal diameter and may be combined. Split retaining rings, c may be provided on the end of the plunger b<1>. Flanged ferrules g and h hold the spring g<1> centrally in the casing. When worn the buffer may be restored to its original length ,by adding a rubbing plate i having a square spigot i<4> to prevent rotation.
Patent GB-518748-A (GB)
Title: Improvements in means for producing linear adjustments
IPC: G05D23/02
Filed: 1938-09-01
Abstract: 518,748. Linear-dimension gauges. LANGLEY, T. W., and TECALEMIT, Ltd. Sept. 1, 1938, No. 25543. [Class 106 (ii)]  [Also in Group XXIX]  An adjusting - device, applicable for instance to a measuring gauge or a valve, comprises three co-axial surfaces of revolution which cooperate with spacing- means and are so  arranged that a com-. paratively large axial movement of one of the surfaces produces a  small axial movement of another of the surfaces. In the construction shown in the Figure, an adjusting-screw 24 and a plug 22 are formed with conical surfaces 25, 23 co-operating with balls 26 which co-operate also with a flat surface 19 on a rod 16 forming part of a valve, movement of the adjusting-screw imparting a fine adjustment to the rod. The surfaces 19 and 23 may be replaced by conical and flat surfaces. Convex or concave surfaces may be employed.
Patent GB-1480425-A (GB)
Title: Electronic components
IPC: H01B3/30
Filed: 1975-04-24
Abstract: 1480425 Photopolymerised coatings WELWYN ELECTRIC Ltd 24 April 1975 [10 June 1974] 25613/74 Heading B2E [Also in Division C3] An electronic component defined as an electrical resistor, an electrical capacitor, or a hybrid circuit comprising one or more electrical resistors and/or capacitors, is provided with an adherent protective coating of an organic polymer by applying a layer of organic material polymerisable and hardenable by exposure to ultra-violet irradiation, and exposing the material to ultra-violet radiation until the layer is hardened. The organic material is preferably an acrylic or epoxy compound or a polyester mixed with either styrene or an acrylate, and preferably contains a photopolymerisation initiator. Suitable acrylate compounds include pentaerythritol tetracrylate, ethylene dimetracrylate, trimethylol propane triacrylate, 1, 6-hexanedioldiacrylate and pentaerythritol monohydroxytriacrylate. Photoinitiators may be benzoyl peroxide, benzoin methyl ether, methyl ethyl ketone peroxide, acetophenone, benzaldehyde, benzil, benzoin, benzophenone, triphenyl phosphine, and for epoxy compounds, substituted phenyl diazonium fluoroborates and fluorophosphates. The coating composition may also contain dyes, pigments and fillers, such as ultramarine blue, antimony trioxide, titanium dioxide, silica (e.g. powdered quartz), magnesium silicate, calcium carbonate, barium carbonate and barium sulphate. One or more coatings may be applied, each coating being hardened before the next is applied. The coating may be applied by brushing, the electrical component then being rotated during the radiation hardening to ensure uniformity of the coating. The coating may be applied on top of a coating of a different material or may be covered with a different coating. In the Examples the coating is applied to an electrical resistor consisting of a cylindrical ceramic substrate having a tin oxide resistive film thereon.
Patent GB-748041-A (GB)
Title: Means for measuring small pressure differences at high pressures
IPC: G01L13/02
Filed: 1953-09-16
Abstract: 748,041. Pressure gauges. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER. Sept. 16, 1953 [Sept. 20, 1952], No. 25630/53. Class 106 (2). Means for measuring small ressure differences at high pressures comprises a pressure chamber and a pressure sensitive element whose sides are acted on by fluid pressures, the pressure difference between which is relatively small, in which variations in said element are transmitted from within the pressure chamber to an external region at a relatively low pressure through a sealing bellows attached at its one end tc the wall of the pressure chamber, said transmission being effected by a lever, means being provided to adjust the attached end of the bellows by displacement solely in the plane of attachment thereof relatively to the axis of suspension of the lever to a position in which no turning moment due to the pressure difference on the sealing bellows is transmitted to the lever. A bellows 16, Fig. 1, sealed to the join of the upper and lower walls 10, 12, of the pressure chamber, divides the chamber into two compartments, and has its lower end closed by a domeshaped member 24 on a sleeve 26, which carries a driving rod 40 and a spring 32 tending to contract, the other end of the spring being fixed to a three-legged spider 34 pressing on a supporting ring 36. Movement of the bellows 16 is transmitted via the rod 40 and a pin and seat bearing 46, 50, to a double crank lever 42, 44 and 78, the centre section of which passes through the wall of the pressure chamber and is sealed to it by a sealing bellows 64. The cranked lever is supported as shown in detail in Figs. 2, 3 and 5 which differ slightly from the form shown in Fig. 1. The sealing bellows has soldered to it two sealing rings 66, 68, Fig. 3, the upper one of which is forced into contact with a packing ring 74 by a ring 62 fixed to the pressure chamber by four bolts 63, Figs. 2, 5, and the lower one of which is forced against a shoulder 70 on the rod 44 by a bolt 72. Integral with the ring 62 are two projections which house two knife edges 60, Fig. 3, on which rest two braces 54 bolted to the end 52 of the arm 78. Adjustment of the bellows 64 can be effected either by slackening the bolts 63 and 72, when it can be rotated about its axis, or by slackening bolts 63 and using two adjusting bolts 76, Fig. 2, which enable the end ring 68 of the bellows to be moved in its own plane in a direction perpendicular to the axis of suspension formed by the knife edges 60. The device is intended for use in a submarine, with water under the variable pressure of a pitot tube in the upper compartment and water under a static pressure in the lower compartment. Valves are provided to prevent damage to the device when initially loading it. Specification 635,731 is referred to.
Patent GB-411928-A (GB)
Title: Improvements relating to the production of metal castings
IPC: B22D27/06
Filed: 1933-09-08
Abstract: 411,928. Casting processes. BAILEY, R. W., 20, Grange Avenue, Hale, Cheshire, ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London, and ENGLISH STEEL CORPORATION, Ltd., Vickers Works, Sheffield. Sept. 8, 1933, No. 25805/32. [Class 83 (i).] Electricity, heating by ; moulds.-In the casting of solid or hollow ingots or other castings of simple form, liquid metal, in one or more conduits 38 connected with the head or other part of the mould 33, is propelled and keeps substantially all the liquid metal in the mould in motion. The metal in a passage 36 may be propelled by a rotating or travelling magnetic field set up by a three phase current passing through a structure 40 similar to the stator of a three phase motor. In a modification the metal is propelled mechanically as by hydrogen, nitrogen &c. admitted to and withdrawn from a chamber 55, Fig. 5, by a pipe 59. The metal in the chamber 55 or in the conduit 38 of either modification may be heated by an induction coiL 58. In another modification the metal in vertical passages 44, Fig. 4, is heated by coils 47 and thus circulated by convection only. Cooling from the bottom upwards may be effected, for instance as in Specification 360,980, at the same time.
Patent GB-896546-A (GB)
Title: Liquid level gauges
IPC: F17C13/02
Filed: 1960-07-25
Abstract: 896,546. Indicating liquid levels. BENDIX CORPORATION. July 25, 1960 [Aug. 3, 1959], No. 25872/60. Class 123(1). A high and low level alarm apparatus especially for liquids such as liquid oxygen, which utilizes the difference in heat conductivity of the liquid and its vapour, consists of an expansible capsule 20 from which depends into a dewar flask 10 containing the liquid a small bore tube 18 housed within an evacuated insulating tube 25. Immediately below and above the preset high and low levels the tube 18 emerges from the tube 25 and is wound therearound in single turn coils 26, 27. The capsule and tube 18'are partly filled under a pressure slightly exceeding that in the flask with a liquid, preferably that contained in the flask. Heating coils 28, 29 are provided adjacent the coils 26, 27 respectively and are supplied with current from a source 42 through a manual switch 38 and respective resistances 51, 50, the latter being shunted by switches 41, 40 which are actuated together with alarm circuit switches 44, 45 by the movements of the capsule via a rod 46. In operation, assuming that the flask contains liquid oxygen 11 to a level. Z, on closing the switch 38 a low current flows through the heaters 28, 29 slightly warming the tube 18. Heat dissipation from the coil 26 in the gas space 12 is insufficient to produce condensation therein. Condensation occurs in the coil 27, however, since this coil is immersed and the capsule 20 partly collapses to the condition shown, switches 40, 45 being closed whilst switches 41, 44 remain open. When the switch 40 closes the resistance 50 is shorted and the heating of the coil 27 thereby increased. The increased heating is insufficient to cause evaporation within the coil but serves, if the liquid level falls below the coil, i.e. to the preset "low'' level, to cause a quick evaporation of its contents and a rapid response of the apparatus to the low level condition, the capsule expanding fully to cause switches 40, 45 to open, the switch 45 being so connected in a low level alarm circuit W, W that the alarm is given. When the liquid reaches the high level Y it covers the coil 26 and condensation of the fluid therein occurs. The capsule contracts fully, thereby closing switches 41, 44. The switch 41 shorts the resistance 51 to increase the heating of the coil as described for the coil 27, whilst the closing of the switch 44 ,energizes a high level alarm in the circuit X, X.
Patent GB-391111-A (GB)
Title: Improvements in or relating to air-driven gyroscopic apparatus
IPC: G01C19/38
Filed: 1931-04-16
Abstract: 391,111. Gyroscopic apparatus. REID & SIGRIST, Ltd. and REID, G. H., Canbury Park Road, Kingstonon- Thames. Sept. 16, 1931, Nos. 25966/31 and 2860/32. [Class 97 (iii).] In gyroscopic turn indicators, the axial changes of distance between the rotating bearing surfaces are made the same as the axial changes of distance between the stationary bearing surfaces by providing metallic members having appropriate thermal coefficients for controlling these distances. In the form shown in Fig. 1, the rotating bearing surfaces 3 are on the ends of a chromium steel spindle 2 and the stationary bearing surfaces 5 are in chromium steel plugs 6 attached to the gimbal frame by soft steel sleeves 7. The axial members 10 of the gimbal are of high carbon steel. Alternatively the sleeve 7 may be dispensed with and the stationary bearings provided in chromium steel bosses threaded into the gimbal. In the form shown in Fig. 3, the gimbal is made of drawn steel tubing of substantially rectangular section and a saddle member 19 of steel having a greater thermal co-efficient or of brass is attached tightly to the axial part 18 of the gimbal so that the latter on cooling is subjected to a slight bowing as well as the normal contraction, the stationary bearings 5 being thus contracted to an extent equal to the contraction of the rotating bearings 3. Thermal compensation for the mounting of the gimbal in the supporting frame may be provided. The gimbal has axial members of the same steel as the gyro spindle and aluminium longitudinal members and is pivoted between upstanding arms of an aluminium frame in which is formed an integral driving jet and an orifice for exhausting air from the casing. Specification 2120/13, [Class 97 (iii), Thermometers &c.], is referred to and the matter claimed in Specification 387,366 and 388,169 is disclaimed. According to the second Provisional Specification, the dial of the instrument has an illuminated window coloured half green and half red, the indicating member comprising a shutter fixed to the gimbal. Further, the casing may be provided with a valve arranged to admit air when the air pressure in the casing falls below a predetermined value.
Patent GB-255691-A (GB)
Title: Improvements in electro-plating baths for simultaneously obtaining metallic depositsof various thicknesses
IPC: C25D5/16
Filed: 1925-10-19
Abstract: 255,691. Wurttembergische Metallwarenfabrik, and Wolf, A. Oct. 19, 1925. Shields; electrolytes, heating.-In apparatus for obtaining a metal deposit of varying thickness the cathodes are enclosed in compartments Z, Fig. 3, formed in part of perforated insulating shields 7 and in part of existing parts of the cell such as the sides 3. The anodes are placed in compartments A. Alternatively, the compartments may be formed jointly by the shields and accessories such as electric heaters 10, Fig. 6, placed within the cell, or by the shields, walls and accessories combined. Various configurations are described. The shields may make a butt or flange joint with the co-operating surfaces or may enter slots in the surfaces formed by fillets or by cutting; they may alternatively be made integral with the cell or accessories.
Patent GB-1032457-A (GB)
Title: Improvements in and relating to lock mechanisms for safes and strongrooms
Inventor: THOMAS LESLIE JOHN
IPC: E05B65/00
Filed: 1963-03-13
Abstract: 1,032,457. Sliding bolts. STRATFORD EQUIPMENT CO. Ltd. March 13, 1963, No. 26243/63. Divided out of 1,032,456. Heading E2A. A locking mechanism for a safe door comprises bolts 15 secured to actuating members 19, 20 the latter of which may be engaged in its locking position by a bolt 30 of a lock 29 and the former of which has secured to it a housing 37 which is engaged by a spring-biased bolt 32. To unlock the door the lock 44 is operated to withdraw bolt 43 whereby arm 40 is rotated about pivot 41 to withdraw bolt 32 and the bolt 30 of lock 29 is withdrawn. The bolts 15 may then be withdrawn by pivoting lever 23 by means of an outside handle.